Improved post-hole borer



@glitten tat-e5 stmt @ffice ALFRED F. S'UMMERS, OF PEORIA, ILLINOIS,- ASSIGNOR TO HIMSELF, YCHAUNOEY NYE, AND THOMAS A. SLAGK.

IMPROVED POST-HOLE BORER.

fitte tlgthuli nient to im tlgcte Fetten; irteut mit marking niet of tige stime.

Be it known that I, ALFRED F. Summits, of the city ot Peoria, in the county of Icorirgand State of' Illinois, have invented a new and useful Machine for Boring Post-Holes.; and I do hereby declare that the following is a full, clear, and exact description oi' the construction and operation of the same, reference beingr had to the annexed drawings, making part of this specification, in which- Figlire l is a perspective view.

Figure 2 is a plan.

Figure 3 is a longitudinal elevation.

Figure 4'is a section of the boring-apparatus on a larger scale.

Figure 5 is a view' of the cutting-part of the auger. d

Figure 6 is a view of the convex surface of the dirt-remover.

Figure 7 is'a View of the auger at work, and

Figure 8 is a view of the collar of the dirt-remover.

My invention consists in the construction of a post-hole machine, moving upon wheels, so arranged that distance may be measured bythe machine as 'it passes over the ground, and by means'of which the screw is appliedA to the working of the boring-apparatus.

, To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation. v

I construct a platform or body of the carriage A a ain the form of an isosceles triangle, with an opening in the same, of suihcient length and breadth to afford room for the movements ofthe boring-apparatus.

I support the body by three wheels, one' of which is a measuring-wheel, H, placed near the vertex of the triangle, as represented in fig. v1, and the other two arranged upenn. revolving axle, in a mannerusimilar t0 railroad-car wheels, and attached near the oase of the triangle. v

Over the opening in the body of the carriage A a a, I place an adjusting-slide, B B, provided also with an opening in the middle of the same, of' therequisite form and size to afford suiieient play to the auger E and. dirt-remover G auf, and hold the same down to the body, by means of the metallic plates I and J, which vare` rmly bolted te the cross-pieces of the body of the carriage. The standards 116 b Z, attached to the slide B B, support the boring-apparatus, and by' this combination and arrangement, the auger may be moved from side te side oi" the body of tho carriage, and worked at any point between thel sides.

C is-a universal axle, consisting of two axles placed at right angles, and containing a spherical concave nut, through which the screw D works, and by means of which the auger is kept constantly in aperpendieular position by its own weight.` d

D is a screw, of requisite size, and d is a wheel upon the head of tne screw, having upon the circumference a handle, by which the screw is turned.

The shaft of the auger E is connected with the screw D by the swivel-joint c, as represented in g. 4. This joint consists of two sections, of which the upper section is a concave nut, usedvupon the lower end'ot` the screw, and the lower section is a hollow cylinder, having the hollow of the same of less diameter than. that of the screw.

Upon the upper end of the shaftof the auger E, and within the swivel-joint e, is a rouudvhead or nut, of a diameter equal to thatof the screw D, which forms the connection of the shaft E to the swivel-joint e.

In the lower end of the swivel-joint is a notch, produced by extendingl the same downward, (g, figs. 3 and 4,) in such a manner that it resembles a single wind of the thread of a` screw cut off at the point where the circle becomes complete.

7i is a hole in the side of the swivel, by means of which the swivel is lubricated.

gis a pin or stop, firmly fixed in the shaft of the auger E, at such a distance below the head of the shaft that it falls below the notch in the lower end'ot` the swivel-joint, when the auger is r.clieved from the pressure of the screw.

F is the worm or cutting-part of the auger. A l A I attach .to the auger and screw a dirt-remover, consisting of the convex plate G, having a round hole through the centre, of a diameter a little larger than that of the auger, and held in position by the rods u u, which connect the same with the collar f. v

fis also a concave nut, which runs upon the screw D, between the universal axle C and the swivel-joint e.

The measuring-wheel His made of such size that its circumference may be conveniently divided into equal spaces or ares bythe pins z', j, Lm, n, 0,' and p, and it is also divided in -the same manner by radii, or lines extending from the centre of the wheel to the pins ,j, 7c, Z, m, n, o, and lo, and numbered respectively 1, 2, 3, 4, 5, 6, 7, and 8. Thiswheel is also provided with ridges or projections upon the tire, to prevent the same from slipping upon the ground.

l q is a dat, pointed piece .of metal, lriveted 'to the plate J, in .such a position that thepinse', j, 7c, l, m, n, o, undp touch and spring the same as the WheehH revolves, indicating, by the number of clicks produced, the distance passed over by thecarriage. l

l r s is a bra-ke, so adjusted that it may be applied tothe measuring-wheel H, to prevent the same from revolving, v

' Operation.

Figure 1 represents the Amachine in position for boring. A The screw D is driven down by turning the wheel d. The descent 4of the screw drives the swivel-joint vdown upon the shaft of the auger E, as the cutting-part of the auger F comes in contact with the ground, and the pinor stop g'catches in the lower end of' the swivel-joint, and turns the auger. The auger is then drivenv down to the depth required.

On reversing the movement of the Wheel d, theauger is drawn out.; and, as the screw is drawn up, the pin gi'a'lls below the notch in the lower end of the swivel-joint e. The joint then acts as a swivel, and the auger is drawn up steadily and without turning, thereby saving-the dirt from falling or winding back into the hole, from or through the worm or cutting-part of the auger. lAs the pulveriz'ed dirt is forced up through the hole in the convex plate G', by .the elevation of the auger, it slides away-from the` shaft of the auger, down the v declining surface of the convex pla-te G, and, as; the whole boring-apparatus is finally raised from the ground -by the working of the screw, whatever dirt then remains upon the platcslides oil', and drops from the rim of the plate far enough from the hole to be prevented from falling into the same.

Thegdneasuremeut of distance by the measuring-wheel H is ei'ected as follows: As the wheel revolves, v the distance isjndicated by the clicks produced by the striking of the pins ij le, dac., 'against the' spring g, and

also-by the position of the radii or lines numbered-l 2 3, dsc., which may be determined by the eye.

By means of the combination of the adjusting-slide B B and the, standards bb b b, any'deviationfrom a right line may he correct-edby moving the slide to the right or left upon the bodyloi` the earriage'nithout moving the carriage itself.4 v l Having thus fullydescribed my invention, what I claim therein as new, and desire to secure by Letters Patent, is-

1. The adjusting-slide B B, and kthe standards b b b bythe universal axle C, containing the spherical nut, the screw D, the swivel-joint e, 4and the measuring-wheel H, as described,iarranged, and operated, in combination with a carriage and auger, substantially in the Vmanner and for the purposes as herein set forth.

2.4 The auger E F, and adjustable concave plate G, iu combination with the swivel-joint e and screw D, as described, and operating substantially in thelmalnner and forthepurposes set forth.

3. The carriage A a a, as described, in combination with theau'ger E F and its operating-devices, substantially in the manner and for'the purpose set forth.

ALFRED F. SUMMERS.

Witnesses:

WILL F. B01-Lern. Geo. L. Bussen. 

